Sorteberg relay
Encyclopedia
The Sorteberg relay, or Sorteberg force bridge pneumatic relay is a form of analog
pneumatic computer
, calibrated to calculate a predefined function. They were sold by Sorteberg Controls Corp.
It consists of a series of bellows, joined by a beam. The balance of forces between the bellows across the beam is responsible for performing the computation. The end of the beam often controls a flapper nozzle, which itself provides a varying pressure input to a pneumatic relay. This output can then be directed to other components. The Sorteberg relay has seen use in process control in oil refineries
and numerous other facilities.
Analog computer
An analog computer is a form of computer that uses the continuously-changeable aspects of physical phenomena such as electrical, mechanical, or hydraulic quantities to model the problem being solved...
pneumatic computer
Computer
A computer is a programmable machine designed to sequentially and automatically carry out a sequence of arithmetic or logical operations. The particular sequence of operations can be changed readily, allowing the computer to solve more than one kind of problem...
, calibrated to calculate a predefined function. They were sold by Sorteberg Controls Corp.
It consists of a series of bellows, joined by a beam. The balance of forces between the bellows across the beam is responsible for performing the computation. The end of the beam often controls a flapper nozzle, which itself provides a varying pressure input to a pneumatic relay. This output can then be directed to other components. The Sorteberg relay has seen use in process control in oil refineries
Oil refinery
An oil refinery or petroleum refinery is an industrial process plant where crude oil is processed and refined into more useful petroleum products, such as gasoline, diesel fuel, asphalt base, heating oil, kerosene, and liquefied petroleum gas...
and numerous other facilities.